.course{
    background-color: @white;
    padding: 50px 20px 0;
    .van-tabs{
        padding-top: 25px;
        /deep/ .van-tabs__nav{
            .van-tabs__line{
                display: none;
            }
            .van-tab{
                .van-tab__text{
                    display: block;
                    width: 86px;
                    height: 86px;
                    background: url(@/assets/imgs/course1.png) no-repeat;
                    background-size: contain;
                }
                &:nth-child(2) .van-tab__text{
                    background-image: url(@/assets/imgs/course2.png);
                }
                &:nth-child(3) .van-tab__text{
                    background-image: url(@/assets/imgs/course3.png);
                }
                &:nth-child(4) .van-tab__text{
                    background-image: url(@/assets/imgs/course4.png);
                }
                &:nth-child(5) .van-tab__text{
                    background-image: url(@/assets/imgs/course5.png);
                }
                &.van-tab--active:nth-child(1) .van-tab__text{
                    background-image: url(@/assets/imgs/course1-on.png);
                }
                &.van-tab--active:nth-child(2) .van-tab__text{
                    background-image: url(@/assets/imgs/course2-on.png);
                }
                &.van-tab--active:nth-child(3) .van-tab__text{
                    background-image: url(@/assets/imgs/course3-on.png);
                }
                &.van-tab--active:nth-child(4) .van-tab__text{
                    background-image: url(@/assets/imgs/course4-on.png);
                }
                &.van-tab--active:nth-child(5) .van-tab__text{
                    background-image: url(@/assets/imgs/course5-on.png);
                }
            }
        }
    }
}